Item Details

Title: Effect of mother plant applied nitrogen and potassium on the sowing value of true potato seed

Date Published: 2000
Author/s: Kanzikwera , C.R'., Tenywa ,J.S, Osiru, D.S. Adipala, E' and Bhagsari, A.S
Data publication:
Funding Agency : United States Agency for International ·Development (USAID)
Copyright/patents/trade marks: National Agricultural Research Organisation
Journal Publisher: Uganda Journal of Agricultural Sciences
Affiliation: 1 Department Of Crop Science, Makerere University, P.O. Box 7062, Kampala. 2 Soil Science Department, Makerere University, P.O. Box 7062, Kampala. 3 Port Valley State College/Agricultural Research Station, P.O. Box 5744, Fort Valley, Georgia, USA
Keywords: TPS, Nitrogen, Potassium, Quality


A screen house experiment was conducted during 1996 short rains to assess carry-over effects of mother plant-applied
nitrogen and potassium on seedling emergence, seedling vigour and dry matter accum~lation of Solanum potato
seedlings from true potato seed (TPS). Hybrid TPS was obtained from a cross between CIP 381379 (Kisoro) and
Rutuku. Kisoro mother plants received N rates of 0, 120 and 240 kg ha·1
, and potassium rates of 0, 132.8 and 265.6
kg ha·t. Performance of seed lots from the different fertiliser treatment combinations was compared to that of ·
imported hybrid progenies, lP 88001, IP 88006 and KP 90178,8 obtained from mother plants supplied with 500 kg
DAP ha·
• Mother plants supplied with 120 and J 32.8 kg Nand K, respectively, produced true seed with high seedling
emergence and vigour (sowing value), comparable to that ofimported hybrid TPS.